u-boot/drivers/power/domain/power-domain-uclass.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

106 lines
2.4 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016, NVIDIA CORPORATION.
*/
#include <common.h>
#include <dm.h>
#include <power-domain.h>
#include <power-domain-uclass.h>
static inline struct power_domain_ops *power_domain_dev_ops(struct udevice *dev)
{
return (struct power_domain_ops *)dev->driver->ops;
}
static int power_domain_of_xlate_default(struct power_domain *power_domain,
struct ofnode_phandle_args *args)
{
debug("%s(power_domain=%p)\n", __func__, power_domain);
if (args->args_count != 1) {
debug("Invalid args_count: %d\n", args->args_count);
return -EINVAL;
}
power_domain->id = args->args[0];
return 0;
}
int power_domain_get(struct udevice *dev, struct power_domain *power_domain)
{
struct ofnode_phandle_args args;
int ret;
struct udevice *dev_power_domain;
struct power_domain_ops *ops;
debug("%s(dev=%p, power_domain=%p)\n", __func__, dev, power_domain);
ret = dev_read_phandle_with_args(dev, "power-domains",
"#power-domain-cells", 0, 0, &args);
if (ret) {
debug("%s: dev_read_phandle_with_args failed: %d\n",
__func__, ret);
return ret;
}
ret = uclass_get_device_by_ofnode(UCLASS_POWER_DOMAIN, args.node,
&dev_power_domain);
if (ret) {
debug("%s: uclass_get_device_by_ofnode failed: %d\n",
__func__, ret);
return ret;
}
ops = power_domain_dev_ops(dev_power_domain);
power_domain->dev = dev_power_domain;
if (ops->of_xlate)
ret = ops->of_xlate(power_domain, &args);
else
ret = power_domain_of_xlate_default(power_domain, &args);
if (ret) {
debug("of_xlate() failed: %d\n", ret);
return ret;
}
ret = ops->request(power_domain);
if (ret) {
debug("ops->request() failed: %d\n", ret);
return ret;
}
return 0;
}
int power_domain_free(struct power_domain *power_domain)
{
struct power_domain_ops *ops = power_domain_dev_ops(power_domain->dev);
debug("%s(power_domain=%p)\n", __func__, power_domain);
return ops->free(power_domain);
}
int power_domain_on(struct power_domain *power_domain)
{
struct power_domain_ops *ops = power_domain_dev_ops(power_domain->dev);
debug("%s(power_domain=%p)\n", __func__, power_domain);
return ops->on(power_domain);
}
int power_domain_off(struct power_domain *power_domain)
{
struct power_domain_ops *ops = power_domain_dev_ops(power_domain->dev);
debug("%s(power_domain=%p)\n", __func__, power_domain);
return ops->off(power_domain);
}
UCLASS_DRIVER(power_domain) = {
.id = UCLASS_POWER_DOMAIN,
.name = "power_domain",
};